Online measurement method for heat consumption of satellite power supply controller

Abstract

The invention relates to an online measurement method for the heat consumption of a satellite power supply controller in the technical field of satellite power supply and distribution systems. The method comprises steps: 1, full-link closed loop backflow is provided for power supply for a solar cell analog array; 2, the solar cell analog array is interconnected with a test long cable, a plug-in cable and a satellite power supply cable; 3, the total output power of the analog array is calculated; 4, the satellite assembly state is well set; 5, the output power of the analog array is acquired; 6, the whole satellite load power consumption is acquired; 7, based on satellite telemetry data, the power consumption of a battery is acquired; 8, according to the link loss calibration in the third step, the link loss is acquired, and the heat consumption of the power supply controller is acquired; and 9, a heat consumption change curve is drawn, and health judgment on the working state inside the power supply controller is assisted. The heat consumption of the power supply controller can be measured in a real-time and online mode, the heat consumption of the power supply controller is measured online accurately, and the health state judgment of the power controller and the whole satellite heat control design are assisted.

Description

technical field [0001] The invention relates to the technical field of satellite power supply and distribution systems, in particular to an online measurement method for heat consumption of a satellite power supply controller. Background technique [0002] The thermal design of the power controller is the focus of satellite thermal control design. The heat consumption of the power controller will vary with different operating modes. It is difficult to accurately control the thermal design of the power controller in the implementation of satellite thermal control; In addition, due to the quality problem of the power MOS tube inside the power controller, a certain model has a problem of high heat consumption of the power controller, especially in the thermal vacuum test environment, the heat consumption cannot be effectively dissipated, and the temperature of the power controller is higher than estimated If the temperature is higher than 15°C, it is not conducive to the therma...

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Problems solved by technology

[0005] For the defects of the prior art, the purpose of the present invention is to provide an online measurement method of the heat consumption of the satellite power controller. The present invention can solve the problem of real-time online measurement of the heat consumption of the power controller under different working modes of the satellite, and the power controller The measurement error of heat consumption is small and the measurement result is accurate

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